Probability and Two Way Frequency Tables

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What is probability?

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Probability is a measure of how likely an event is to occur, expressed as a number between 0 and 1, where 0 means the event will not happen and 1 means it will definitely happen.

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What is a two-way frequency table?

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A two-way frequency table is a table that displays the frequency of different outcomes in two categories, allowing for the analysis of the relationship between the two variables.

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How do you calculate the percentage of a group?

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To calculate the percentage of a group, divide the part by the whole and then multiply by 100. For example, if 10 out of 50 students are boys, the percentage of boys is (10/50) * 100 = 20%.

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What does it mean if an event is independent?

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An event is independent if the occurrence of one event does not affect the occurrence of another event.

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What is a sample space in probability?

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A sample space is the set of all possible outcomes of a probability experiment.

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What is the difference between qualitative and quantitative data?

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Qualitative data describes characteristics or qualities (e.g., colors, names), while quantitative data involves numerical values that can be measured (e.g., height, weight).

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How can you interpret a two-way table?

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You can interpret a two-way table by analyzing the frequencies of different combinations of the two variables, which helps to identify patterns or relationships.

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What is a mode in statistics?

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The mode is the value that appears most frequently in a data set.

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What is a median in statistics?

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The median is the middle value in a data set when the numbers are arranged in order.

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What is a mean in statistics?

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The mean is the average of a set of numbers, calculated by adding all the values together and dividing by the number of values.